Derris hainanensis

Interesting Facts

Description

Genus Derris

Woody climbers less commonly trees or shrubs . Leaf imparipinnate , leaflets opposite, stipels present or absent; stipules small and caducous . Inflorescence a raceme or panicle. Bract and bracteoles small. Calyx cupulate and subtruncate or with very short teeth. Corolla white, pink or purple. Vexillum ovate to obovate or suborbicular , usually with auricles or calluses at the base . Wing adhering to keel petal. Stamens monadelphous , vexillary stamen free at the base only. Ovary often subsessile , few-ovulate, style glabrous above, stigma terminal . Fruit flat, indehiscent, upper or both the sutures winged . Seed reniform or orbicular .

A genus with about 70 species, mainly distributed in the tropical regions of the world.[1]

Taxonomy

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Domain: Eukaryota () - Whittaker & Margulis,1978 - eukaryotes
- Kingdom: Plantae () - Haeckel, 1866 - Plants
  - Subkingdom: Viridaeplantae () - Cavalier-Smith, 1981
    - Phylum: Tracheophyta () - Sinnott, 1935 ex Cavalier-Smith, 1998 - Vascular Plants
      - Subphylum: Euphyllophytina ()
        Class: Spermatopsida () - Brongniart, 1843
        Subclass: Rosidae () - Takhtajan, 1967
        Superorder: Rosanae () - Takhtajan, 1967
        Order: Fabales () - Bromhead, 1838
        Family: Leguminosae () - A.L. de Jussieu, 1789, nom. cons.
        Subfamily: Papilionoideae ()
        Tribe: Millettieae ()
        Genus: Derris () - Loureiro, 1790, nom. cons. - Derris
        Specific epithet: hainanensis - Hayata
        Botanical name: - Derris hainanensis Hayata